Pumps – Expansible chamber type – Selectively usable plural inlet or outlet distributors for...
Patent
1993-02-16
1994-08-16
Casaregola, Louis J.
Pumps
Expansible chamber type
Selectively usable plural inlet or outlet distributors for...
417503, 417553, 13762541, 53510, 53512, 53 88, F04B 3910, B65B 3104
Patent
active
053381661
ABSTRACT:
An improved evacuation pump system uniquely designed to evacuate both lidded rigid containers and sealable flexible containers. A vacuum cup fixed to one end of a reciprocating piston pump attaches to the lid of rigid containers for their evacuation and a flexible probe connects to the pump for flexible container evacuation. To achieve this dual function a inlet passage in the pump has a cross bore that slidably and/or rotatably receives a two position valve that selectively connects the pumping chamber with two outlets, one associated with each mode. The flexible probe connects directly to this valve reducing the need for separate passageways.
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Casaregola Louis J.
McAndrews, Jr. Roland G.
Pioneering Concepts Incorporated
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